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Application filed by Борис Олександрович Гей, Борис Александрович ГейfiledCriticalБорис Олександрович Гей
Priority to UA4781778ApriorityCriticalpatent/UA14261A1/en
Publication of UA14261A1publicationCriticalpatent/UA14261A1/en
The invention relates to lining means. Support includes rigid spacing rings and lagging fixed on those, this is arranged as flexible plates. It is equipped with mechanism for compression and fixation and headache posts, at that the last ones are fixed to spacing rings at beneath and have length smaller than distance between adjacent spacing rings, and the plates are installed at spacing rings in hinged way.